United Nations secretary-general Antonio Guterres hailed the donor conference in Geneva as a "remarkable success".
"We all know who. the parties to the war (are)", he told reporters. "We all know who the parties (are) to the war but the two things need to be seen separately", the United Nations chief told reporters. "'Independent of the fact that there is a war, there are humanitarian obligations that are assumed by countries, ' he said..."
"... The funding pledged at the high-level event fell short of the U.N.'s $2.96 billion goal". The target for the 2018 Yemen humanitarian appeal was set at $2.96 billion (2.4 billion euros). Guterres cited an "opportunity to be seized".
The Western-backed, Saudi-led coalition, says the Houthis attacked the oil tanker off Yemen's main port of Hudaida on Tuesday. In addition, Yemen is affected by a cholera outbreak where more than 1 million people are presumed to have been infected within the a year ago. Only half of the country's health facilities function and 16 million people lack access to clean water and sanitation facilities, which increases the risk of disease spreading. Guterres noted that a child under 5 dies every 10 minutes from preventable causes.
Saudi Arabia and the United Arab Emirates (UAE) intervened against the Houthis in Yemen's war in 2015 to restore the internationally recognised government of President Abd-Rabbu Mansour Hadi.
The final list of pledges showed that each country had offered $500 million.
Earlier on Tuesday, U.N. Secretary-General Antonio Guterres urged the warring sides in Yemen to reach a political settlement to end a conflict now in its fourth year that has left 22 million people in urgent need of aid.
Saudi officials are saying the tanker was in global waters at the time of the attack. "There was no impact, but the question is will it continue?" one of the sources said.
"The countries that are also party to the conflict were party to these worldwide efforts to support the people of Yemen". Saudi-led airstrikes have killed thousands of civilians and destroyed hospitals, schools and markets.
A leading human rights group on Monday called on Saudi Arabia to lift its blockade on Yemen, and for the Houthis to stop firing missiles across the border into the kingdom.